Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Assets:
Cash	$ 23,064	$ 26,560
Accounts receivable (net of $6.3 million and $8.3 million allowance for doubtful accounts, respectively)	63,384	60,136
Prepaid expenses	25,910	24,410
Other current assets	3,607	5,030
Total current assets	115,965	116,136
Property, plant and equipment (net of $1,333.0 million and $1,281.2 million accumulated depreciation, respectively)	1,090,246	1,118,781
Intangible assets (net of $57.1 million and $54.3 million accumulated amortization, respectively)	81,129	83,879
Restricted cash	651	651
Other assets	3,005	3,079
Total assets	1,290,996	1,322,526
Liabilities and Stockholders’ Deficit:
Current portion of long-term debt	6,400	6,400
Current portion of capital lease obligations	1,031	918
Accounts payable	28,229	28,157
Claims payable and estimated claims accrual	0	216
Accrued interest payable	3,420	9,983
Accrued payroll and related expenses	24,914	24,753
Other accrued liabilities	53,160	49,802
Total current liabilities	117,154	120,229
Capital lease obligations	1,239	1,223
Accrued pension obligations	152,142	150,562
Accrued post-employment benefit obligations	93,677	94,042
Deferred income taxes, net	23,614	35,075
Other long-term liabilities	20,520	22,739
Long-term debt, net of current portion	899,666	900,145
Total long-term liabilities	1,190,858	1,203,786
Total liabilities	$ 1,308,012	$ 1,324,015
Commitments and contingencies (See Note 13)
Stockholders’ deficit:
Common stock, $0.01 par value, 37,500,000 shares authorized, 27,065,799 and 26,921,066 shares issued and outstanding at March 31, 2016 and December 31, 2015, respectively	$ 271	$ 269
Additional paid-in capital	524,121	521,842
Retained deficit	(689,024)	(707,592)
Accumulated other comprehensive income	147,616	183,992
Total stockholders’ deficit	(17,016)	(1,489)
Total liabilities and stockholders’ deficit	$ 1,290,996	$ 1,322,526